[Nexus 4 General] ziddey:
Finally got a 5ghz wifi ap -- dir815 refurb for $18

All my other devices can connect to it just fine, regardless of the settings.

I've tried bone-stock settings as a baseline, as well as making sure I'm not on a DFS channel... tried low ones and high ones, 20 vs 40mhz width, etc (ideally when all is said and done, I'd like to go high channel 40mhz).

Then I went to a friend's place and tried his 5ghz network but couldn't get on either. I don't remember the model but it was some Netgear unit.

I was on the new .84/.33 hybrid, so I gave both.84 and .54 tries, but they didn't help. Currently sitting on the new .54/.33 hybrid since people claim it works better with 5ghz wifi.

Made sure I'm on the right wifi region. Just no dice.

I can see 5ghz aps with wifi analyzer (third party app) as well as in the wifi scan, but they ALL disappear and come back over and over. Meanwhile, 2.4ghz aps are rock solid.

dmesg + logcat:

<6>[ 4375.002013] wlan: connection failed with xx:xx:xx:xx:xx:xx reason:3 and Status:7
<6>[ 4375.002318] wlan: connection failed with xx:xx:xx:xx:xx:xx reason:1 and Status:9
<3>[ 4385.058262] wlan: [1537:E :HDD] wlan_hdd_cfg80211_set_cipher: received cipher 0 - considering none
<3>[ 4385.058506] wlan: [1537:E :HDD] wlan_hdd_cfg80211_set_cipher: received cipher 0 - considering none
<3>[ 4386.136119] wlan: [1531:E :PE ] limProcessMlmAuthCnf: 622: Auth Failure occurred.

I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
D/CommandListener( 180): Clearing all IP addresses on wlan0
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT bssid=xx:xx:xx:xx:xx:xx status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 1
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
W/wpa_supplicant( 1537): wlan0: Failed to initiate AP scan
I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT bssid=xx:xx:xx:xx:xx:xx status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 2
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT bssid=xx:xx:xx:xx:xx:xx status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 3
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT bssid=xx:xx:xx:xx:xx:xx status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 4
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
D/CommandListener( 180): Clearing all IP addresses on wlan0
I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 5
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 6
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
I/wpa_supplicant( 1537): wlan0: Trying to associate with SSID 'dlink_media'
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-ASSOC-REJECT status_code=1
E/wpa_supplicant( 1537): Retrying assoc: 7
I/wpa_supplicant( 1537): wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 locally_generated=1
D/SupplicantStateTracker( 656): Association getting rejected, disabling network 7

That's with a full rest of the router (open ap). Doesn't help trying wpa2/aes. Not entirely useful seemingly. I can try to catch the log for a different ap later, but I get the feeling it'll be the same.